After peace was achieved, Hieron built new edifices for Syracuse, including a massive theatre during the period 238-215 BC, hoping to assure it would remain the center of the Greek world, but when Hieronymus sided with Carthage against Rome a long siege from 213 to 211 BC occurred and ended with the city-state being sacked by the Roman commander Marcus Claudius Marcellus. Without a leader, Syracuse became a Roman provincial capital.